Hover over the center piece to find hot spots for expanding vertically and horizontally. Not all pieces have expansions.

Click a hotspot (expansion arrows) to expand the reveal the image inside (in that direction).

Click on any little peripheral squares or rectangles to collapse the structure to the image clicked.

Use keyboard keys! Use the W, A, S, and D keys as if they were arrows (like in PC games). W/S are vertical expansion/collapse. A/D are horizontal expansion/collapse. The [SPACEBAR] will start a random crawl through the Yono pieces. The arrow keys work too, but also scroll your browser.